Riccar Tool Clip Lock Nut, ...
$6.99
Product details
Riccar's parts catalog lists part A732-3700 as the lock nut for the onboard tool clip on 4000-series Vibrance uprights, a No. 6-32 thread driven with a 5/16 in. socket. Because it locks rather than sits plain, this nut grips the thread against the vibration a running vacuum constantly puts through its fasteners, instead of slowly backing off the way an ordinary nut would.
Putting a used lock nut back into service rarely saves anything. The locking feature that bites the thread wears away after a handful of removals, and when it finally lets go, the clip and whatever tool was riding in it usually go with it. On a machine in daily use, that kind of failure tends to surface as a lost attachment on a job site rather than a rattle you catch beforehand.
- Thread: No. 6-32
- Socket width: 5/16 in.
- Function: locking fastener
- Series: Vibrance 4000
Order A732-3700 for the nut. Where the matching screw shows the same wear, swap both together rather than reopening the tool mount a second time later, which matters most on a commercial-duty unit that needs to go straight back into service. A 5/16 in. socket is common, but seat your driver fully on the nut head before applying torque, since a partial bite can round the corners instead of turning it.
Verified against: Riccar parts listing for A732-3700